Shoe insole



y 1939- E. 1. LA CHAPELLE 2,165,494

SHOE INSOLE Filed June 6, 1958 JiT eW for.

Pal i t 1 1 39 2,165,494

' UNITED STATES PATENT 'OFFIQE SHOE INSOLE V Euclid I. La Chapelle,Brock'ton, Application .lune 6, 1938, Serial No. 212,046

1 Claim. (Cl. 36-22) My invention relates to welt shoe insoles andmenting of the sewing rib to the insole preparamore particularly tofabricated welt shoe insoles, tory to stitching the same thereto andcarries such as composed of a plurality of superposed certain seriousdefective conditions. For incemented layers of insole material.instance, the sewing rib cannot be positioned A fabricated welt shoeinsole, like a leather and cemented to the insole as far inwardly from 5welt shoe insole, when of the gem type, as thin its edgeface, along itsinner shank part, as good insoles generally are, is shouldered andchanneled practice and style demand, because of the predeand then theshoulder-lip and the channel-lip termined extent of the penetratingmovement of are raised up to form part of the sewing rib with the needleof the stitching machine all around 10 canvas applied thereover and overthe entire plane the insole. Moreover, the inseam stitches must 9 faceof the insole up to the heel seat portion. necessarily be set above thestitches uniting the Such welt shoe insoles are termed gem insoles"sewing rib to the insole in close proximity to the and, besides beingcostly, are disadvantageously bottom of the stitch receiving portion ofthe sew- Weakened by the channeling process involved. ing rib, asotherwise the stitches would be sev- Attempts have been made from timeto time ered by the awl of the welt shoe inseaming matowards providing asewing rib, substantially as chine. But, to set the inseam stitchesabove the herein shown, upon fabricated welt shoe insoles bottom of thestitchreceiving portion of the sew- Without channeling and withoutgemming and ing rib, is against the best dictates of inseaming,

with the use of fastening adapted to permanently which are that thestitches should be set at the 0 hold the sewing rib from lateraldisplacement on extreme bottom of the'stitch receiving portion of 2, theinsole and that would not pass through the the sewing rib for solidityand tightness of ininner plane face of the insole and marr its seam andfor uniformity of inseam line all around smoothness. So far as I amaware, towards the the contour of the shoe. attainment of this objectivecementitious mate- In this connection it is to be noted that I prorialhas heretofore been the only fastening means vide fastenings which arepositioned at a sub- 25 brought forth for holding the sewing rib to thestantial distance from the edge face of the insole fabricated insole.But cementitious material and from the stitch receiving portion of thesewalone, cannot hold the sewing rib to the fabriing rib, so that theneedle of the welt shoe incated insole (or to a leather insole) at thewelt seaming machine may not engage therewith and shoe inseaming machineand during the entire which may be readily inserted through the sewing39.

time of wear, so that none of these-attempts has rib and partly throughthe insole regardless of ever been successful in practice. the positionof the sewing rib relatively to the A leather welt shoe insole, providedwith a edge face of the insole. sewing rib, substantially as hereinshown, is now Fabricated insoles are less costly than leather being madewithout channeling and without geminsoles, being generally made of pulpor the like, 3?

ming and with permanent fastenings in the form and, in some respects,fabricated insoles may be of stitches not protruding through the innerplane superior to leather insoles. Fabricated insoles for face of theinsole, by engaging and passing several years have been and now areextensively through the edge face of the insole and under used in typesof shoes not requiring a sewing rib,

40 the surface of its inner plane face and through such as McKay andcemented types of shoes, and 40 the inner flange portion of the sewingrib-the are used to some extent in welt shoes under the stitches beingset upon the edge face of the insole gem process, as already hereinexplained.

and upon the inner flange portion of the sewing But the greatdesideratum of bringing forth a rib in close proximity to the bottom ofthe stitch satisfactory and economical fabricated welt shoe receivingportion thereof. insole having a cemented sewing rib upon one 45 But, inthe case of a fabricated welt shoe inof its plane faces and requiring noshouldering, sole composed of a plurality of superposed layers nochanneling and no gemming operation and of insole material, such asherein shown, the having permanent fastenings for positivelyholdlaminated edge face of the insole then cannot ing the sewing ribfrom lateral displacement on hold the stitching thread under the strainof the insole atthe welt shoe inseaming machine 50 stitch setting, sothat such a mode of fastening and during the entire time of wear,without passthe sewing rib to the fabricated insole is inoperaingthrough the inner plane face of the insole, tive and impractical. hasbeen for'the first time attained by my present Furthermore, this mode ofstitching the sewing invention, rib to the insole involves thepositioning and ce- My invention, in its most vital aspect, resides 55in the location of sewing rib holding means through the sewing rib andinto the insole outside of the path of the movement of the needle of thewelt shoe inseaming machine so that the I represents the sewing rib, asa whole, which,

preferably, is of fabric material, such as canvas, and the rib 2, formsthe inseam stitch receiving portion thereof. As shown, the said rib 2,is reinforced by a strip 3, which is, preferably, of paper or the like.Extending from the stitch receiving rib 2, are the inner flange 4 andthe outer flange 5, which are cemented to the plane face of thefabricated insole 6, which, as shown, is composed of a plurality oflayers of insole material which generally is of the nature of paper likematerial. For positively holding in co-operation with the cement, thesaid cemented sewing rib from lateral displacement on the insole at thewelt shoe inseaming machine and during the entire time of wear, Iprovide the metallic fastenings "I, which, as shown, are, preferably, inthe form of arcuated staples adapted to engage the inner flange 4, ofthe sewing rib l, and which pass through only a portion of the thicknessof the insole and clinch upon the plane face of the insole, as bestshown at 8, in Figs. 1 and 3. I, preferably, adopt latex rubber cementfor holding the sewing rib to the insole.

Of course, the staples may be clinch-ed directly upon the inner flange4, of the sewing rib I, depending upon the width of the flange, and itis believed that one staple at every one half inch should be suflicienttopositively hold, in cooperation with the cementitious material, thesewing rib from lateral displacement on the insole at all times. Asherein shown,,the staples, preferably, are disposed relatively to eachother in substantially straight alignment.

Rigid fastenings, of a rigidity adaptable for positively holding, inco-operation with cement, the sewing rib from lateral displacement onthe insole, of fabricated type or of solid leather type, at the weltshoe inseaming machine and during the entire time of wear, is for thefirst time provided and such fastenings are best for the purposesdescribed.

In this connection it is to be noted that a sewing rib on any welt shoeinsole is subjected to great strain outwardly towards the edge of theinsole under the effect of wear and firstly under the eiTect of stitchsetting at the welt shoe inseaming machine. In the event of the sewingrib being disturbed at the welt shoe inseaming machine, the peripheralcontour of the shoe then would be distorted and lack in the uniformityso much desired; and still more serious results would ensue in the eventof being disturbed during the time of wear.

Although metallic fastenings in the form of arcuated staples are hereinshown and preferably adopted, my invention, in its broader aspect isintended to cover and does cover fastenings of any suitable material ofa rigidity adapted to positively hold, in co-operation with thecementitious material, the sewing rib from lateral displacement on theinsole at all times, such as, for example, fibre pegs of a lengthadapted to extend only through a portion of the thickness of the insole,and, whenever the context so permits, the claim is to be interpreted inthat sense.

Moreover, although my invention has for prime objective the bringingforth of a fabricated welt shoe insole, it is to be appreciated that myinvention is not to be limited to such an insole and, Whenever thecontext so permits, the claim is to be interpreted to include solidleather welt shoe insoles and any and all kinds of insole materialadaptable to my invention.

In the making of a welt shoe insole such as herein shown, the sewing ribmay be formed, applied and cemented upon the insole by the well knownPoole machine; and the arcuated staples may be formed and inserted bythe well known Littleway machine once the insole is assembled on thelast.

Having thus explained the nature of my invention and shown the best formof embodiment now to me known, what I claim as new and desire to secureby Letters Patent of the United States is:

A welt shoe insole comprising a body portion and a sewing rib having aninwardly extending flange, the flange being cemented to the body portionof the insole, said cement bond being reinforced by only a single row ofrigid fasteners which are located at a substantial distance inwardlyfrom the inseam stitch receiving portion of the sewing rib and whichpass through the sewing rib flange and only part way through the bodyportion of thednsole.

.EUCLID I. LA CHAPELLE.

